How Compatible Is Dazai’s Younger Brother with the Demon Slayer Corps?

[Anime crossover: Demon Slayer first, then Bungo Stray Dogs. Other series will be added depending on inspiration.]

Tsushima Tsukiharu died in an epidemic. When he opened his eyes again, he saw a grotesque demon.

This story is mainly an exploration of:

A self-harming, world-weary little demon who loves nothing more than death vs. the ever-vital Demon Slayer Corps. So, what exactly is life?

A twisted, timid little black-mud gremlin vs. a straightforward, sunny swordsman. Learn how to crack open a hedgehog’s shell.

A scriptwriting team of logic monsters vs. the scum boss behind countless human tragedies. How many Hashira does it take to speed-run the Infinity Castle?

In short, this is the coming-of-age story of a “coward” who learns to love after being loved.

Later, Tsushima Tsukiharu returned to the world of Bungo Stray Dogs.

Looking at his long-lost younger brother, Dazai Osamu happily decided to celebrate with a dip in the water.

But the moment he jumped in, his quick-witted little brother fished him right back out.

Dazai Osamu: “?”

Tsushima Tsukiharu: “Sorry, big brother. I think a bunch of idiots rubbed off on me. I can’t stand seeing anyone fail to cherish their life.”

Dazai Osamu: “!!!”

Little brother, you’re acting weird!